An unknown Kesha (known then as Ke$ha) sang on Flo-Rida's #1 hit "Right Round," but refused to appear in the video because she wanted to make a name for herself.
The Bangles song "Eternal Flame" was inspired by a display at Graceland that honored Elvis Presley.
Robert Smith doesn't license Cure songs for commercials, but he made an exception in 2004 when he let Hewlett-Packard use "Pictures Of You." He needed the money to buy the group's back catalogue.
Stevie Wonder wrote his own version of "Happy Birthday" in an attempt to get Martin Luther King's birthday declared a national holiday.
The song "Don't Worry Be Happy" doesn't use any instruments - it's all Bobby McFerrin using various parts of his body to make the sounds.
"Sweet Child O' Mine" by Guns N' Roses is about Erin Everly, who was Axl Rose's girlfriend at the time. She is the daughter of Don Everly of the Everly Brothers.
The men of Sparks on their album Hippopotamus, and how Morrissey handled it when they suggested he lighten up.
Are classic songs like "Over The Rainbow" and "Take Me Out to the Ballgame" in the public domain?
Franti tells the story behind his hit "Say Hey (I Love You)" and explains why yoga is an integral part of his lifestyle and his Soulshine tour.
Dean's saga began with "Ariel," a song about falling in love with a Jewish girl from New Jersey.
Bob was the bass player and lyricist for the first two Ozzy Osbourne albums. Here's how he wrote songs like "Crazy Train" and "Mr. Crowley" with Ozzy and Randy Rhoads.
On "Life Is A Highway," his burgeoning solo career, and the Rascal Flatts song he most connects with.